Straight from the key features of the game on Steam, "MILLIONS OF BUGS! We're only eliminating the crash-bugs, everything else is hilarious and we're keeping it" "In-game physics that spazz out all the time." There's also a disclaimer as well if that means anything to you, "Disclaimer: Goat Simulator is a completely stupid game and, to be honest, you should probably spend your money on something else, such as a hula hoop, a pile of bricks, or maybe pool your money together with your friends and buy a real goat."
And really I wouldn't have even bought the game if it weren't for the bugs making it hilarious in the stupidest way possible, because a game called goat simulator is not a game looking to be taken seriously.